:root {
  --bg: #0d0e10;
  --panel: #141518;
  --panel-2: #1b1c20;
  --raised: #23252a;
  --line: #2b2d33;
  --line-strong: #3a3d45;
  --text: #ecebe6;
  --muted: #a6a7ad;
  --faint: #7d7f86;
  --accent: #f0a46b;
  --accent-ink: #1d1209;
  --warn: #f3c45a;
  --note: #8fb8e8;
  --ok: #7ed3a6;
  --bad: #ff8f80;
  --radius: 10px;
  --ui: "Inter Variable", "Inter", system-ui, sans-serif;
  --display: "Space Grotesk Variable", "Inter Variable", system-ui, sans-serif;
  --mono: "JetBrains Mono Variable", ui-monospace, "SFMono-Regular", monospace;
  color-scheme: dark;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 14px/1.45 var(--ui);
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr;
}

h1,
h2,
p {
  margin: 0;
}

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

[hidden] {
  display: none !important;
}

/* --- header ------------------------------------------------------------------ */
.bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 20px;
  border-bottom: 1px solid var(--line);
  background: var(--bg);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.mark {
  width: 30px;
  height: 30px;
  flex: none;
  border-radius: 50%;
  background:
    radial-gradient(circle at 34% 30%, #fff8ef 0 7%, transparent 16%),
    radial-gradient(circle at 40% 38%, #f6c3a6 0, #b8693e 46%, #3a1d10 78%, #120a06 100%);
  box-shadow: 0 0 0 1px #ffffff14, 0 6px 18px -6px #f0a46b80;
}

h1 {
  font: 600 17px/1.15 var(--display);
  letter-spacing: -0.01em;
}

.library {
  color: var(--muted);
  font-size: 12.5px;
}

.sample-note {
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.01em;
  padding: 5px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  white-space: nowrap;
}

/* --- layout ------------------------------------------------------------------------ */
.lab {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 404px;
  min-height: 0;
}

@media (min-width: 961px) {
  body {
    height: 100vh;
    overflow: hidden;
  }
}

.viewport {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  border-right: 1px solid var(--line);
}

.stage {
  position: relative;
  flex: 1;
  min-height: 0;
  overflow: hidden;
  background: radial-gradient(120% 90% at 50% 40%, #202125, #0b0b0d);
}

.view {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  touch-action: none;
  cursor: grab;
}

.view:active {
  cursor: grabbing;
}

/* Soft vignette keeps the overlays legible on bright environments. */
.stage::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(#0d0e10cc, transparent 18%, transparent 74%, #0d0e10d9),
    radial-gradient(130% 100% at 50% 50%, transparent 60%, #0006);
}

.view:focus-visible {
  outline-offset: -3px;
}

.labels {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 1;
}

.tag {
  position: absolute;
  transform: translate(-50%, -50%);
  white-space: nowrap;
  font: 500 11.5px/1 var(--mono);
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.tag.axis {
  font: 600 11px/1 var(--ui);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text);
}

.tag.start {
  transform: translate(-22px, -50%);
}

.tag.slot {
  font: 600 13px/1 var(--display);
  color: var(--accent-ink);
  background: var(--accent);
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  box-shadow: 0 4px 14px -4px #000;
}

.overlay {
  position: absolute;
  left: 16px;
  right: 16px;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  pointer-events: none;
}

.overlay > * {
  pointer-events: auto;
}

.overlay.top {
  top: 14px;
}

.overlay.caption {
  bottom: 14px;
  flex-wrap: wrap;
}

.mode-note {
  color: var(--text);
  font-size: 12.5px;
  opacity: 0.88;
  max-width: 86ch;
  pointer-events: none;
}

.fallback {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 32px;
  text-align: center;
  color: var(--muted);
  z-index: 1;
}

/* --- segmented controls -------------------------------------------------------------- */
.segmented {
  display: inline-flex;
  padding: 3px;
  gap: 2px;
  border-radius: 999px;
  background: #121316e6;
  border: 1px solid var(--line-strong);
  backdrop-filter: blur(8px);
}

.segmented label {
  position: relative;
  cursor: pointer;
}

.segmented input {
  position: absolute;
  opacity: 0;
  inset: 0;
  margin: 0;
  cursor: pointer;
}

.segmented span {
  display: block;
  padding: 6px 14px;
  border-radius: 999px;
  font-weight: 550;
  font-size: 13px;
  color: var(--muted);
  transition: background 0.18s ease, color 0.18s ease;
}

.segmented input:checked + span {
  background: var(--text);
  color: #111;
}

.segmented input:focus-visible + span {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.segmented.small span {
  padding: 4px 10px;
  font-size: 12px;
}

.verdict {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 13px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: #121316e6;
  font-size: 12.5px;
  font-weight: 550;
  cursor: pointer;
}

.verdict .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ok);
  box-shadow: 0 0 0 3px #7ed3a62e;
}

.verdict[data-level="warn"] .dot {
  background: var(--warn);
  box-shadow: 0 0 0 3px #f3c45a2e;
}

.verdict[data-level="note"] .dot {
  background: var(--note);
  box-shadow: 0 0 0 3px #8fb8e82e;
}

.compare-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.diff-count {
  font: 500 11.5px var(--mono);
  color: var(--muted);
  padding: 0 4px;
}

.field-inline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  padding: 3px 3px 3px 12px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: #121316e6;
}

.field-inline select {
  max-width: 220px;
  border: 0;
  background: var(--raised);
  border-radius: 999px;
  padding: 5px 10px;
}

/* --- buttons and fields --------------------------------------------------------------- */
.ghost,
.primary {
  border-radius: 8px;
  padding: 7px 12px;
  font-size: 12.5px;
  font-weight: 550;
  cursor: pointer;
  border: 1px solid var(--line-strong);
  background: #121316e6;
  transition: background 0.15s ease, border-color 0.15s ease;
}

.ghost:hover {
  background: var(--raised);
}

.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-ink);
}

.primary:hover {
  background: #f5b585;
}

button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

select,
input[type="text"],
input[type="number"],
textarea {
  background: var(--panel-2);
  border: 1px solid var(--line-strong);
  border-radius: 7px;
  padding: 6px 9px;
  min-width: 0;
}

select {
  appearance: none;
  padding-right: 28px;
  background-image: linear-gradient(45deg, transparent 50%, var(--muted) 50%), linear-gradient(-45deg, transparent 50%, var(--muted) 50%);
  background-position: calc(100% - 15px) 52%, calc(100% - 10px) 52%;
  background-size: 5px 5px;
  background-repeat: no-repeat;
}

textarea {
  width: 100%;
  resize: vertical;
  font: 12px/1.5 var(--mono);
}

input[aria-invalid="true"] {
  border-color: var(--bad);
}

/* --- toolbar --------------------------------------------------------------------------- */
.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px 18px;
  padding: 10px 16px;
  border-top: 1px solid var(--line);
  background: var(--panel);
}

.envs {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.env {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 10px 4px 4px;
  border-radius: 8px;
  border: 1px solid var(--line);
  cursor: pointer;
  font-size: 12.5px;
  color: var(--muted);
  transition: border-color 0.15s ease, color 0.15s ease;
}

.env input {
  position: absolute;
  opacity: 0;
  inset: 0;
  margin: 0;
  cursor: pointer;
}

.env-swatch {
  width: 40px;
  height: 26px;
  border-radius: 5px;
  display: block;
}

.env.on {
  border-color: var(--accent);
  color: var(--text);
}

.env:has(input:focus-visible) {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.view-controls {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.mini {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--muted);
}

.mini input {
  width: 96px;
}

.mini output {
  font: 500 11.5px var(--mono);
  color: var(--text);
  min-width: 52px;
  font-variant-numeric: tabular-nums;
}

/* Range inputs: a thin track with an accent fill up to the thumb. */
input[type="range"] {
  appearance: none;
  height: 18px;
  background: transparent;
  margin: 0;
  cursor: pointer;
  --fill: 50%;
}

input[type="range"]::-webkit-slider-runnable-track {
  height: 3px;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--accent) var(--fill), var(--line-strong) var(--fill));
}

input[type="range"]::-moz-range-track {
  height: 3px;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--accent) var(--fill), var(--line-strong) var(--fill));
}

input[type="range"]::-webkit-slider-thumb {
  appearance: none;
  width: 13px;
  height: 13px;
  margin-top: -5px;
  border-radius: 50%;
  background: var(--text);
  border: 2px solid var(--bg);
  box-shadow: 0 0 0 1px var(--line-strong);
}

input[type="range"]::-moz-range-thumb {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--text);
  border: 2px solid var(--bg);
}

input[type="range"]:focus-visible {
  outline-offset: 4px;
}

/* --- panel ----------------------------------------------------------------------------------- */
.panel {
  display: flex;
  flex-direction: column;
  min-height: 0;
  min-width: 0;
  background: var(--panel);
}

.tabs {
  display: flex;
  gap: 4px;
  padding: 10px 14px 0;
  border-bottom: 1px solid var(--line);
}

.tabs [role="tab"] {
  border: 0;
  background: none;
  padding: 9px 12px 11px;
  color: var(--muted);
  font-weight: 600;
  font-size: 13px;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}

.tabs [role="tab"][aria-selected="true"] {
  color: var(--text);
  border-bottom-color: var(--accent);
}

.tab-panel {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 14px 16px 24px;
  scrollbar-width: thin;
  scrollbar-color: var(--line-strong) transparent;
}

.slot-switch {
  display: flex;
  margin-bottom: 12px;
}

.slot-switch label {
  flex: 1;
  text-align: center;
}

.identity {
  display: grid;
  gap: 8px;
  margin-bottom: 12px;
}

.field {
  display: grid;
  gap: 5px;
}

.field > span {
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}

.identity select,
.identity input {
  width: 100%;
}

.group {
  border-top: 1px solid var(--line);
}

.group summary {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 2px;
  cursor: pointer;
  list-style: none;
}

.group summary::-webkit-details-marker {
  display: none;
}

.group-title {
  font-weight: 650;
  font-size: 13.5px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.group-title::before {
  content: "";
  width: 6px;
  height: 6px;
  border-right: 1.5px solid var(--muted);
  border-bottom: 1.5px solid var(--muted);
  transform: rotate(-45deg);
  transition: transform 0.18s ease;
}

.group[open] .group-title::before {
  transform: rotate(45deg) translate(-2px, -1px);
}

.group-state {
  font: 500 11.5px var(--mono);
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.group.off .group-state {
  color: var(--faint);
}

.group-body {
  display: grid;
  gap: 4px;
  padding: 0 2px 12px;
}

.row {
  display: grid;
  grid-template-columns: 112px minmax(0, 1fr) 62px;
  align-items: center;
  gap: 10px;
  min-height: 30px;
}

.row > label,
.row-label {
  font-size: 12.5px;
  color: var(--muted);
}

.row .num {
  width: 100%;
  padding: 4px 6px;
  text-align: right;
  font: 500 12px var(--mono);
  font-variant-numeric: tabular-nums;
}

.color-row {
  grid-template-columns: 112px 34px minmax(0, 1fr);
}

.color-row .hex {
  font: 500 12px var(--mono);
  padding: 4px 8px;
  width: 100%;
  max-width: 120px;
}

.swatch {
  appearance: none;
  width: 34px;
  height: 26px;
  padding: 0;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  background: none;
  cursor: pointer;
}

.swatch::-webkit-color-swatch-wrapper {
  padding: 2px;
}

.swatch::-webkit-color-swatch {
  border: 0;
  border-radius: 4px;
}

.swatch::-moz-color-swatch {
  border: 0;
  border-radius: 4px;
}

.choice-row,
.select-row {
  grid-template-columns: 112px minmax(0, 1fr);
}

.select-row select {
  width: 100%;
}

.choice-row .segmented {
  justify-self: start;
  background: var(--panel-2);
  backdrop-filter: none;
}

.group-note {
  font-size: 12px;
  color: var(--faint);
  padding-top: 2px;
}

.edit-status:empty {
  display: none;
}

.edit-status {
  margin: 0 0 12px;
  padding: 7px 10px;
  border-radius: 7px;
  background: var(--panel-2);
  border-left: 3px solid var(--bad);
  font-size: 12.5px;
  color: #ffd9d3;
}

/* --- checks -------------------------------------------------------------------------------- */
.checks {
  border-top: 1px solid var(--line);
  padding-top: 12px;
}

h2 {
  font: 650 13.5px/1.3 var(--ui);
  margin-bottom: 8px;
}

.check-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.check {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 2px 10px;
  padding: 9px 11px;
  border-radius: 8px;
  background: var(--panel-2);
  border-left: 3px solid var(--ok);
  font-size: 12.5px;
}

.check p {
  grid-column: 1 / -1;
  color: #d9d8d3;
}

.check .level {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ok);
}

.check .rule {
  font: 500 11px var(--mono);
  color: var(--faint);
  justify-self: end;
  grid-row: 1;
  grid-column: 2;
}

.check.warn {
  border-left-color: var(--warn);
}

.check.warn .level {
  color: var(--warn);
}

.check.note {
  border-left-color: var(--note);
}

.check.note .level {
  color: var(--note);
}

/* --- export ------------------------------------------------------------------------------------ */
.formats {
  display: flex;
  margin-bottom: 10px;
}

.formats label {
  flex: 1;
  text-align: center;
}

.export-summary {
  color: var(--muted);
  font-size: 12.5px;
  margin-bottom: 10px;
  overflow-wrap: anywhere;
}

.code {
  margin: 0 0 10px;
  max-height: 360px;
  overflow: auto;
  padding: 12px 14px;
  border-radius: 9px;
  background: #0b0c0e;
  border: 1px solid var(--line);
  font: 12px/1.55 var(--mono);
  color: #d8e3d0;
  tab-size: 2;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.status {
  min-height: 20px;
  margin: 8px 0 14px;
  color: var(--muted);
  font-size: 12.5px;
}

.import {
  border-top: 1px solid var(--line);
  padding-top: 14px;
  display: grid;
  gap: 10px;
}

.import h2 {
  margin: 0;
}

.hint,
.privacy {
  color: var(--muted);
  font-size: 12.5px;
}

.privacy {
  margin-top: 16px;
}

.file {
  position: relative;
  justify-self: start;
}

.file input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
  width: 100%;
}

.file span {
  display: inline-block;
  border-radius: 8px;
  padding: 7px 12px;
  font-size: 12.5px;
  font-weight: 550;
  border: 1px dashed var(--line-strong);
}

.file:has(input:focus-visible) span {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.import-messages {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 6px;
  font-size: 12.5px;
}

.import-messages li {
  padding: 7px 10px;
  border-radius: 7px;
  background: var(--panel-2);
  border-left: 3px solid var(--note);
}

.import-messages .good {
  border-left-color: var(--ok);
}

.import-messages .warn {
  border-left-color: var(--warn);
}

.import-messages .bad {
  border-left-color: var(--bad);
  color: #ffd9d3;
}

/* --- capture and small screens --------------------------------------------------------------- */
.capture * {
  transition: none !important;
}

@media (max-width: 960px) {
  .lab {
    grid-template-columns: minmax(0, 1fr);
    height: auto;
  }

  .viewport {
    border-right: 0;
  }

  .stage {
    flex: none;
    height: min(64vh, 560px);
    min-height: 340px;
  }

  .tab-panel {
    overflow: visible;
  }
}

@media (max-width: 560px) {
  .bar {
    padding: 10px 16px;
    flex-wrap: wrap;
    gap: 8px;
  }

  .sample-note {
    white-space: normal;
    font-size: 11.5px;
    padding: 3px 9px;
  }

  .overlay {
    left: 10px;
    right: 10px;
  }

  .overlay.top {
    top: 10px;
    flex-wrap: wrap;
  }

  .segmented span {
    padding: 6px 11px;
  }

  .mode-note {
    font-size: 12px;
  }

  .toolbar {
    padding: 10px 12px;
  }

  .envs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    width: 100%;
  }

  .view-controls {
    width: 100%;
    justify-content: space-between;
  }

  .mini input {
    width: 84px;
  }

  .row {
    grid-template-columns: 96px minmax(0, 1fr) 58px;
  }

  .color-row {
    grid-template-columns: 96px 34px minmax(0, 1fr);
  }

  .choice-row,
  .select-row {
    grid-template-columns: 96px minmax(0, 1fr);
  }
}